Unit 3 Functions Pre-assessment

Front

Which number is NOT an element in the domain of the relation {(–2, 3), (0, 4), (1, 1), (6, 0)}?

Back

4

Front

The domain is the set of all ______________

Back

x-values

Front

What is the apparent range of the relation shown on the grid?

Back

{-2, 1, 3}

Front

Which of the following graphs appears to be a function?

Back

A graph that passes the vertical line test.

Front

What do the domain and the range appear to be for the function shown?

Back

Domain: (-∞, ∞), Range: [-6, 3/4) or Domain: [-2, 1], Range: (-∞, ∞) depending on the graph.

Front

Define a function.

Back

A relation where each input (x-value) has exactly one output (y-value).

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function; if a vertical line intersects the graph at more than one point, it is not a function.

Front

What is the difference between domain and range?

Back

Domain refers to all possible x-values, while range refers to all possible y-values.

Front

How do you find the domain of a function from a graph?

Back

Identify the x-values that the graph covers.

Front

How do you find the range of a function from a graph?

Back

Identify the y-values that the graph covers.